Stitch-separator and pricking-up machine.



PATENTED FEB. 6, 1906.

APPLICATION FILED MAYZZ. 1905.

2 SHEETS SHEET l.

alumna No. 811,997. PATENTED PEB.6, 1906.

'1. D. BARRY.

STITCH SEPARATOR AND PRIOKING UP MACHINE.

. APPLIGATIOH FILED MAY 22. 1905.

2 SHEETS-SHEET 2- I Y IIIII II I 11L tion, Figure 1 is a side view .UNITED STATES PATENT OFFICE.

THOMAS D. BARRY,v OF BROCKTON, MASSACHUSETTS. STITCH-SEPARATOR AND PRlCKlNG-UP MACHINE.

Specification of Letters Patent.

Patented Feb. 6, 1906.

To all whom it .may concern:

Be it known that I, THOMAS D. BARRY, of Brockton, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Stitch- Separator and Pricking -Up Machines, of which the followin is a specification.

My invention re ates to improvements in stitch-separating and pricking-up machines; and it consists in certain novel features hereinafter described, and particularly pointed out in the claims.

The object of my invention is to produce a machine for separating the stitches on the welt attached to the sole around the vamp to produce the appearance of a hand-sewed shoe.

The present application is to the same subject-matter as my former application filed April 4, 1900, hearing Serial No. 11,432. I

In the accompanying drawings, which illustrate a construction embodying my invenof a stitch-separating and pricking-up machine embodying my invention. Fig. 2 is an end view looking at the front of the machine. Fig. 3 is a perspective view of the front end of the machine,

the stitc -separator about to descend arate the stitches.

throughout the several by the belt E fr owing mechanism which feeds the work and separates the stitches on the .welt attached to the sole around the upper. Fig. 4 is a sectional detail view of the mechanism which operates the stitch-separator. Fig; 5

is a detail view showing the stitch-separator entering between the stitches to separate the same. Fig. 6 is a similar view to Fig. 5 with the stitch-separator in its raised position. Fig. 7 is a detail view showing the work moved from its osition as shown in Fig. 6 and with to sep Fig. 8 is a sectional detail view showing the awl which feeds the work after each separation of the stitches with the presser-foot above resting on the welt of the sole and taken at right angles to the view shown in Fig. 7.

Like letters of reference refer to like parts views.

A represents a frame of any suitable construction'provided with a base B, and mounted in said frame A is a driving-shaft O, which is operated by the driving-pulle D, driven om any suitab e source of power. On the inner end of the shaft 0 and mounted fast thereon is awheel F, to which is eccentrically connected at G the link G, se-

cured on the bar the shaft J which shaft extends forwardly, and mounted fast thereon, at its front end, is an arm K, secured by the connection K to the movable stitch-separator bar L, having bearings A A in the upper part of the frame A. Within the hollow stitch-separator bar L is the rod L in the upper end, and against the lower end of this bar rests the upper end of the spring L", with its lower end against the upper end of the bar L to which bar, at its lower end, is connected the stitch-separator L provided with the pricking-point L and is held in place by a suitable set-screw L". To the upper end of the bar L is secured the in U, which moves in the slot L in the holow bar L. This slot permits the bar L to yield when the pricking-point L has separated the stitches, so as to yieldingly separate the same without cutting into the welt. indentation made by the stitch-separator L can be varied more or less by increasing or decreasing the tension of the spring L by lowering or raising the rod L and securing said rod in its adjusted position by the setscrew L.

On the lower end of the resser-foot bar M is a sleeve M, carrying on its lower end the presser-foot M which is provided with a suitable opening through which the stitchseparator moves up and down in separating the stitches on the welt, and said sleeve is se- M by the set-screw M". Extendin from one side of the presser-foot barMis the pin N and from the frame of the machine projects the pin N. To these pins is secured the spring N (see Fig. 1,) which is adapted to normally yieldingly hold the presser-foot on the outer upper edge of the welt of the sole Q during the operation of the ma chine, as shown in Figs. 5, 6, and 7. Pivoted on the upper part of the frame A at N is a lever N the front end of which extends forward under the pin N, and to the rear end'is connected the rod N, which passes down to any suitable treadle mechanism which when operated raises the resser-foot bar M and the presser-foot M and the stitch-separator bar L and stitch-separator L to allow the work to be placed on the rest 0, secured to the frame A of the machine, Fig. 8, and provided with an opening 0. A branch sleeve M which is a part of the cast sleeve M, extends around the upper end of the stitchseparator and under the shoulder M of the bar L so that when the bar M is raised, as

, cured to a suitable arm on the hub H, fast on i described, the stitch-separator L and bar L are also raised, so that the work may be placed under said sleeve and stitch-separator, as above described. Extending up through the opening O is the awl 0 carried by the awl-holder O supported in the pocket 0 in the upper end of the oscillating arm 0 As the location of the stitch from the edge of the welt may vary in different shoes, it is necessary to adjust the awl-holder to prevent the awl from cutting into the stitch, and to accomplish this result the awl-holder O can be adjusted laterally by means of the screw 0, so as to move the awl-holder along the screw 0 which is loosened whenit is desired to adjust the awl-holder When the screw 0 is tightened up, it bears against the side of the awl-holder and holds the same in a fixed position. The lower end of the oscillating arm 0 is pivoted at O to the frame of the machine and is provided with a vertical slot P, in which is adapted to reciprocate the slide P, pivotally connected to the arm P, which at its lower end is fixed fast on the arm P by the set-screw P engaging the shaft I of the arm P The arm P is secured fast to the shaft P which extends rearwardly in the frame of the machine. Fast on the shaft P near its middle is the arm P, which is pivotally connected to the link P at P and said link P has a stud P adjustable in the slot P of the support P, which is pivoted on the fixed stud P. To the inner end of the support P is pivotally connected the link G at G which link is secured at its upper end to the wheel F at the same point at which the link G is connected, as shown.

As the wheelFrevolves the pricking mechanism will be operated, as previously described, making the indentation between the stitches, and the link G as said wheel revolves will move the support I downwardly and upwardly, whichmotion to the link 1 will be communicated to the arm P and from there to the shaft P to the arm P thence to the arm? and the slide P, so that when the support P moves downwardly the arm I? will move downwardly, thereby oscillating the arm 0 to the right, as shown in Fig. 2 and during this operation the stitch-separator has made its indentation, and as said separator moves upwardly by the mechanism described the support P will move upwardly due to the link G and through the connections described will raise thearm P, which will cause the slide P to move upwardly, and thereby oscillate the arm 0 to the left. This movement of the arm will cause the awl to engage with the shoe and move the same along.

From the above it will be seen that the shaft P receives an oscillating motion, so that at one time the arm I is depressed and at the next time the said arm is raised, operating the awl as described.

S is a suitable retaining-nut on the rear of the shaft P In operation when the front end of the lever N is raised by suitable treadle mechanism the bars L and M, with the presser-foot M and stitch-separator L, are raised, as de scribed, and the work placed upon the rest 0 over the opening 0 and beneath the presserfoot M and stitch-separator L, after which the foot is removed from the treadle, and the spring N moves' the presser-foot M down onto the work, as shown in Fig.5, Fig. 6, and Fig. 7 of the drawings, after which when the power is applied to the shaft C the mechanism previously described operates to cause the stitch-separator L to move down and indent between the stitches, and as said stitchseparatorrises the oscillating arm 0 is oscillated by the mechanism previously described toward the left from the position shown in Fig. 6, and the feed-awl being in engagement with the sole moves the sole a sufficient distance to the left to bring the space between the next two stitches in direct alinement with the stitch-separator, which on the next operation descends and forms an indentation at which the awl O is in its extreme right position ready for the next feeding operation. This operation of feeding the work and separating the stitches continues until the shoe has been finished. The channel on the outer sole is open while the shoe is being fed after each indentation, and nofeed-marks will appear on the bottom of the sole after the shoe is finished, as the feed-marks are afterward covered by the channel being laid over the under stitches and secured in the usual manner.

Having thus described the nature of my invention and set forth a construction embodying the same, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1. In a stitch-separating and pricking-up machine, a work-support, a stitch-separator adapted to enter between the stitches and indent the same, mechanism for operating said stitch-separator, means for varying the indentation of said stitch-separator, a device engaging the bottom of the sole for moving the shoe after each indentation, independently of the movement of the stitch-separator, and mechanism for operating said feed device to move the work between the stitchindenting operations.

2. In a stitch-separating and pricking-up machine, a worksupport, a yielding stitchseparator adapted to enter between the stitches and indent the same, mechanismfor operating said stitch-separator, means for varying the indentation of saidstitch-separator, a device engaging the bottom of the sole for moving the shoe after each indentation independently of the movement of the stitch-separator, and mechanism for operating said feed device to move the work between the stitch-indenting operations.

3. In a stitch-separating and pricking-up machine, a Work-support, a stitch-separator adapted to enter between the stitches to in dent the same, mechanism for operating the stitchseparator, means for varying the indentation of said stitch-separator, a presserfoot for the work, a device engaging the bottom of the sole for movin the shoe after each indentation independent y of the movement of the stitch-separator, and mechanism for operating said feed device to move the Work between the stitch-indenting operations.

4. In a stitch-separating and pricking-up machine, a work-support, a stitch-separator operating to enter between the stitches to indent the same, mechanism for actuating said stitch-separator, means for varying the indentation of said stitch-separator, a feed device for engaging the bottom of the sole to move the shoe after each indentation independently of the movement of the stitch-separator, a carrier for said feed device, means for adjusting said feed device on said carrier to accommodate the stitches, and mechanism for operating said feed device to move the work between the stitch-indenting operations.

5. In a stitch-separating and pricking-up machine, a work-support, a stitch-separator operating to enter between the stitches to indent the same, mechanism for actuating said stitch-separator, means for varying the indentation of said stitch-separator, an awlfeed operating to en age the sole of the shoe to move the same a ter each indentation inoperating to enter between the stitches to in-' dent the same, mechanism for actuating said stitch-separator, means for varying the indentation of said stitch-separator, an aw1- feed operating to engage the bottom of the sole to move the shoe after each indentation independently of the movement of the stitchseparator, an oscillating arm on which said awl-feed is mounted, means for adjusting said aWl-feed on said arm to accommodate the stitches, and means for actuating said arm to move the work between the stitch-indenting operations.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing Witnesses, this 11th day of May, A. D. 1905.

THOMAS D. BARRY.

Witnesses:

CHRISTOPHER CURRAN, EDWARD H. MCMAHON. 

